AirHint found the following cheapest return flights from Istanbul (IST) to Keflavik (KEF) in October 2026 (see full year).
Return flights
| 06 Oct - 14 Oct | LOT | ||
| 28 Oct - 30 Oct | Scandinavian Airlines | ||
| 05 Oct - 12 Oct | Scandinavian Airlines | ||
| 30 Oct - 06 Nov | Air Serbia | ||
| 27 Oct - 30 Oct | Wizz Air UK |
Also check the deals for one-way flights from Istanbul to Keflavik in October.
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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
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